Type-writing machine.



N. H. ANDERSON. TYPE WRITING MACHINE. APPLIOATION FILED JUNE 5,1908. RENEWED JUNE 5. 1913. 1,084,385.

TO NEYS.

3 SHEETS-SHEET 1.

Patented Jan. 13, 1914.

)1; Abd /By n H f/ -X5] -VW QN@ S WITNESSES: g

N. H. ANDERSON. TYPE. WRITING MACHINE. APPLICATION FILED JUNE 5. 190e. RENBWBD JUNI: 5, 1913.

1,084,385. Patented Jan. 13,19

3 SHEETS-.SHEET 2.

1 Fig- 2- A Figs- N. H. ANDERSON. TYPE WRITING MACHINE. PPLIQATION FILED 3mm 5, 190s. BNEWED JUNE 5, 1913. 1,084,385.

Patented Jan. 13, 1914.

8 SHEETS-SHEET 3.'

Fig; 4|-

UNITED STATES PATENT OFFICE.

NILs H. ANDERSON, OE HARTFORD, CONNECTICUT, AssIeNOE, BY MEsNE JASSIGN- MENTS, To THE NoIsELEss TYPEWEITER COMPANY, or MIDDLETDWN, CONNECTI- CUT, A CORPORATION OF CONNECTICUT.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Application led June 5. 1908, Serial 110.436,74?. Renewed .Tune 5, 1913. Serial No. 772,002.

To all whom it may concern:

Be it known that I, NILS H. ANDERSON,

a citizen of the United States, residing at Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Type-lVrit.- in;l Machines, of which the following 1s a full, clear, and exact description, such as `will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to typewriting machines, and more particularly to the carriage feeding mechanism thereof.

One of the objects of the present invention is to provide `new and improved means for effecting a connection between the escape ment mechanism and a feed-rack of the platen carriage.

Another object is to provide mechanism of the above character which will be. substantially niseless in operation, and wherein friction between moving parts will be reduced to a minimum.

vOther objects will be in part obvious and in part pointed out hereinafter.

` The invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the following claims.

In the accompanying drawings, wherein is illustrated one of the various possible embodiments of my invention, Figure 1 is a view taken transversely through the ma'- chine, the mechanism constituting the present invention being shown in elevation; Fig. 2 is a sectional view upon an enlarged scale, taken through portions of the escapement shaft and the associated part-s of the mechanism; Fig. 3 is a similar view of the upper portion of the mechanism illustrated in Fi 2, but looking in a direction at right angles thereto, the platen carriage being shown in a shifted position; Fig. 4 is a view in plan of the mechanism shown in Fig. 3; Fig. l is a plan view showingr a portion of the feedrack and the feed-pinion; Fig. 6 is a sectional view on an enlarged scale, taken on line 6*-6, Fig. 2; Fig. 7 is a similar view on` feed-pinion.

Similar reference characters refer to similar parts throughout the several figures of the drawings.

Referring now to the drawings, 1 denotes a portion of the framing of the machine, and .Q denotes bed or table upon which the typebars, one of which is shown at 3, are supported and across which they are projected to impression by actuating mechanism not shown herein.

4 indicates the platen frame which carries the paper roll 5. The platen, which, in the present instance, is comprised by a thin strip of metal 6, lies in Contact with the platen roll. The pla-ten carriage, in the present instance, is povidedwith a pair of longitudinally extending rails 8 and l0, provided with ball runways,',a`nd between those rails is located a shift rail 1 1 which is su]' ported at its ends by means of links, one of which is shown at 12, said links being in turn connected at their lower portions with arms 13. extending from a shift shaft 14. Balls 15 are interposed between the shift rail and the. rails S and 10 of the platen carriage. the construction being such that during the letteihfeeding movements of the Patented J an. 13, 1914. I

longitudinally moving part of the platen carriage'said rails will ride upon rail 11,

and the entire platen carriage will be shifted vertically upward or downward from a normal intermediate position when said rail 11 is actuated hy the shift mechanism which, in the interest of clearness of illustration, is not shown herein. It should be understood, however. that when shift. shaft 14 isrotated in opposite directions the platen carriage will be correspondingly shifted through its connections therewith.

1G indicates a tie-rod which extends transversely through the central portion of the machine and has an upwardly extending portion or horn 17 which forms an abutment for the platen carriage and holds the same against recession wher the platen isengaged 'by the types. The intermediate portion of the tie-rod rests upon a taule or bed 18 wliieh is lined in the framework et the machine, and the rear portion et said tie-rod may be moved backward or forward to change the disposition of the platen 'with respect to the faces ot the types by means ot a threaded screw 2() which forms a portion of the tierod and which is threadedly connected to the rea-r portion, as at 2l, the opposite endo'f said rod beingr anchored in thevliront Wall 22 of' the framing' of the machine and is provided with an operating handle 23. It is believed that the' above brief description of this tie-rod mechanism 'will sui'lice to render the object-s of the present invention clear ot understandinej. This mechanism, moreover, is described. and claimed in the United States Letters Patent .to lill. l?. Kidder and C. lV. Sponsel, No. 879,107, February l1, 1908. 1t

will be understood that the relatively movable parts of the'tie-rod may be manipulated to cause the platen carriage to move forward or backward with respect to the faces of the types.A

The escapement devices, comprising a fixed dog1 211 and a, movable dog are shown mounted upon a rocher ifnember 2G -which is adapted to be actuated by means oit an arm 37 and a link 28, the latter of which is connected with the arm 30 extending from the universal roch shaft 3l., said shat't being` in turn actuated by means oli arms and links, shown at and d3, respectively, the .links supporting a universal bar 34-, upon which the hey levers rest.

The mechanism above described forms no part of my present invention, but it has been described in order to render the objects hereof clearer oi anderstandinp.

Referring now to the escapement mechanism, indicates the esca pement wheel. 'with which the escapement devices cooperate to aii'ord a. feed ot the carriage, said escape-` ment wheel. resting', as usual, against the nuwable dog' The hub 3G ot escapement wheel in the present instance7 isprovided, as at 37 and 3l", with ball-runways, one of 'these runways being provided at either side ot the escapement wheel. llflfelnbers #it-.0 and il threaded .in brackets 4Q and 4:3 extending' :trom lined portion oit the framing of the machine, as at dit, support the eseapement wheel and the associated parts through the interposition of balls l5 and do, respectively, which located in runways and 3&5. dt this point, it may be noted that the ball-runways and 3S are so formed as to constitute Zones oit a sphere the center of which is located at upon the central axis of the escapement wheel midway between the planes of the sides thereof. lllembers l0 and Llll, therefore,`

manners constitute a universal bearing for said escapement wheel and prevent any binding between. the engaging parts of the bearin in whatever position the escapement whee may assume. In other words, the escapement wheel can rotate as well as oscillate in its bearings.

The escapement shaft shown at 48 is eX- tended through the hub of the escapement wheel and is supported therein by means of ay shoulder 50 which rests upon a shoulderl formed within said hub. The lower end of the escapement shaft, in the present instance, is provided with a tln'eaoled pin 52 which receives a collar 53 and a nut 54, this construction preventing a relative longitudinal movement between the escapement wheel and the shaft. The upper portion of the hub 55 'of th escapenient wheel is provided with a plurality oit teeth 5G and cooperating with these teeth is a member 57 located upon the es eapement shaft, which has oppositely disposed tee'th 58 which interfit with the teeth 56 formed upon the hub. Member 57 is allowed a slight sliding movement upon the escapement shaft, and the teeth thereof are held in engagement with the teeth oit the hub portion by means of a spring (i0 interposed between said member and a collar 6l,

keyed as at (32 upon the escapement shaft. A hey G3 is extended loosely through an aperture provided in the escapement shaft and prevents relative rotation between the clutch member 57 and said escapement shaft, a hood (Saldaeiug provided to prevent the escape ot the loose key (5?). From the above description7 it will'be understood that when the escapement wheel is rotated in one direc- "tion, the intertitting teeth upon the hub oi the eseapement wheel and t-he clutch member 57 will compel a rotation of the escapement wheel with said escapeinent shaft, but during' a reverse rotation ol the eseapement sliatt, the teeth 5(3 and 5S will merely ride over each other, whereby the cscapement wheel may remain stationary.

Referring now to the feed mechanism, a feed-pinion G5 is carried upon the upper 'end ot the escapement shaft LS and meshes with the feed raclr which is swiveled upon the platen carriage so as to enable it to be swung upward and thereby dis- .i6 provided,l said retainer bein grbved depending hub portion 73, thev oo ves thereofbemg best shown at 74 in ig. 6 of the drawings, and the escapement shaft 48 is provided with correspondingly '5 located grooves 75. Located in grooves 74 and 75 of the hub portion 73 of the feedpinion and the escapement shaft 48, respectively, are balls 76, said balls operating as keys to prevent any relative .rot-ation be- 10 `tween the.feedpinion and the escapement- Shaft, but permitting the feed-pinion to :slide freely upon saidy shaft. In order to retain the balls in position in their proper places within their grooves, a retainer 77 is notched at its upper portion, each notci thereof receiving one of balls 76, and a spring 78 which rests upon collar 61 of the escapement 'shaft .48, and is attached thereto, is, at its upper end, connected with said retainer and ho ds the same in operative position.' A hood 80 pressed upon the hub portion 73 of the feed-pinion and depending therefrom has a shoulder 81 which is adapted to en- '25 Ego retainer 77 and prevent the same from ing carried out of operative position. Ilxtenclingl forwardly from the shiftable rail 11 of t e platen carriage are arms 82 in which are threaded trunnion screws 83, upon the inner ends of .which is journaled a circularhead 84.' This head is'provided internallywith a grooveor-ball-runway 85, andthe hub 73 of the feed-.pinion is provided with an oppositely'located and simi- 36 larly formed runway 86,'balls 87 being provided between said runways.

Having .thus described the construction of this embodiment of my invention, the operation thereof may now be explained: it

40 will be understood that'during theoperation of the Vmachine.theescapement devices coperating with the escapernent wheel will afford a feed of the carriage in the usual manner. When the carriage is returned by 45 the hand ofthe operator to a new line-commencing position, the spring-controlled clutch constituted by the toothed member 57 andthe teeth provided upon the hub of the escapementwheel, will be automatically disengaged, whereby the escapement shaft may be rotated freely in a reverse direction without com elling a. rotation of the escapement wheel w rich will be allowed to remain stationary' in'engagement with the escapementV devices. 'Whenever the platen carriage is shifted for different case printing, the feedpinion being-supported thereby will move therewith and slide upward or downward on' the escapement shaft, and during this op` 60. eration the ball key -members will o era-te to eliminated any friction .betweenit e feedpinion-'and' saidnshaft. When it is. desired to changegthe disposition of the platen with respect. to'thevfaoes of the types, such op- 65 Alengthening ori shortening the tie-rod through a manipulation of rod 20, as above explained,4and during this operation the feed-pinion will be carried forward or backward, thereby tilting the escapement shaft and causing the escapement wheel to oscillate slightly in its spherically formed supporting bearing, It will accordingly be seen that I have provided mechanism well adapted to attain the above, among other, ends in a. simple, yet efficient manner, and which will operate toremove any chance of binding in the bearingsfor the escapement wheel or the feedpinion when the platen carriage is moved toward or from the faces of thetypes or is shifted for 'different case printing. .The feed-pinion being supported upon the platen carriageis always in mesh with the feedrack and is shiftable' therewith when the platen carriage i`s shifted.

. As many changes could be made in the above. construction and many apparently widely different embodiments of this invention couldb'made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a imiting sense. It' is also to be understood that the'lauguage used in the following claims is intended to cover all of the generic and specific features of the invention hcreln described and all statements of the scope of the invention which, as a mattei-of language, might be said to fall therebetween.

Having described my invention what I cl aim as new 'and desire to secure by Letters Patent, is:

1. In a typewriting1nachine,-the combination with the'type carriers, of a .pla-ten carriage movable toward and from the types, a feed rack mounted upon the platen carriage and movable therewith, and an escapement shaft having a pinion meshing with aid feed rack and adapted to move therewith.

2. In a typewriting machine, in combination, with the type carriers, of a shiftable platen carriage, a feed rack mounted upon the platen carriage, and an escapement shaft having a pinion meshing with said feed rack and adaptedeto shift with the platen carriage whereby said rack and pin-ion are always in mesh.

4 3. InA a typewriting machine the combination with the type-carriers, of a pla-ten carriage, a feed rack mounted lupon lthe platen carria e, an escapelnent shaft having a pinion mes 1in with said feed rack, anda relatively fixe universal bearing for one end of theescapement shaft.

.4. In a typewriting machine, the combination ,with the-'type `carriers, of a platen carrie emovable toward and fromthetypes, a feet? rack'imounted upon the' pltencarlriage, an eseapement shaft having a pinion meshin with the feed rack and adapted to -move t erewith, a'bearing in which one end of said escapement shaft has rotary and oscillatory movements, and a bearing swiveled upon the platen carriage for the other endof said escapement shaft.

5. In a typewrting machine, the-combination with the type carriers, of a platen car riage movable toward and ,from the types, a feed rack mounted upon the platen carriage, an escapement shaft havingr a pinion meshing with said feed rack and adapted to move therewith, a fixed bearing for-one end of said escapement shaft of such construction that the same may have rotary andA oscillatory movements with respect thereto, and a bearing on theplaten carria-ge for the other end of said escapement shaft.

6. In' a typewriting machine, the combi-, nat-ion with the type carriers, of a platen carriage movable forward and backward with respect to the types, a feed rack mounted upon the platen carriage, an esca-pement shaft, a feed pinion mounted upon said escapement shaft and meshing with said feed rack, a bearing for one portion of said es- 4capement shaft carried by the platen ,car-l riageand movable therewith, an escapement wheel mounted upon said escapement shaft, feed dogs cooperating with saideseapement wheel to afford a feed of the carriage, and a fixed universal bearing for another portion of said escapemeut shaft. i i

7. In a typewriting machine, the combination with the type carriers, of a,-platen earriage movable forward and backward with respect to the types, a. feed rac-k =mounted upon the platen carriage, an escapement shaft, a feed pinion carried by said escapement shaft and meshing with said feed rack, a nearing for one portion of said escapement shaft carried bv the platen carriage and arranged adjacent said feed pinion,` an escapement wheel mounted upon said escapeinent shaft, feed dogs cooperating' with said escapement wheel to afford a -feed of the carriage, and a fixed universal bearing' for aibother portion of saidescapement shaft arranged adjacent the escapeinent wheel.

' 8. In a. typewriting machine, the combination with the type carriers, of a platen carriage movable forward and backward to change the disposition of the platen with respect to the faces of the types, a feed rack mounted upon the platen carriage and movable therewith, a feed pinion mounted upon said escapement shaft and meshing with said feed rack, and bearings for said escapement shaft, the construction being. such that said escapement shaft may tilt slightly when the platen carriage is moved toward or from` the faces of the types.

nation with the platen carriage provided with a feed rack, an escapement shaft having a pinion meshin with the feed rack, and bearings for said escapement shaft, one of which is located upon the platen carriage and the other in a fixed portion of the machine.

10. In a typewriting machine, the combination 4with the type carriers, of a platen carriage movable forward and backward with respect to the faces of the'ty'pes so as to change the disposition of the platenl with respect thereto, of a feedraek mounted upon the platen carriage, ,an escapement shaft having a pinion meshing with said feed rack. a truunioned bearing for one end of sald escapement shaft carried by said platen carriage, and a universal bearing for the other end of said escapement. shaft carried by a fixed portion of the machine.

1l. In a typewritingmachine, the combination of a shiftable platen 'carriage provided with a feed rack, 4an escapement shaft, and a pinion mounted' upon said escapement shaft, meshingy-'ith said feed rack and shiftable therewith.

12.`In a typewriting machine, the'combination with the type carriers each of which is `provided with a plurality of types, a. platen carriage adapted 'to be shifted to change the disposition of the platen with respect to said types, an eseapement shaft having a feed pinion meshing: with said feed rack, and a.' support for said feed pinion upon the platen carriage whereby the pinion is shiftablo with the platen carriage.

13. In a typewriting machine, the cornliination with the type carriers each of which is provided with a plurality of types, of a platen carriage shiftable to change the posi'- tion of the platen with respect to said types, a feed rack mounted upon the platen carriage, au cseapement shaft,`and a feed pinion mounted 'upon said escapement shaft which meshes with said feed rack and which mores therewith when the platen'ca-rriage is shifted.

14. In a. typewriting machine, the combination with the type carriers each, of which provided with a plurality of types, of a platen carriage movable forward and backward ,to change the position of the platen with respect to the faces of the types and shiftable for different case printing, a feed rackl uounted upon said platen carriage, an escapement shaft, and a feed pinion mounted upon said escapeinent shaft which Allt meshes with said feed rack and which remains constantly in mesh therewith when the platen carriage is moved forward and backward with respect to the faces of the types or is shifted for different case print-ing. 15. In' a typewritirg machine, the com- 9. In a. typewriting machine, the combil'bination with the type carriers each of which is provided with a plurality oftypes, of a platen carriage movable toward and from the types to change the disposition of the case printing, a trunnioned bearing for one end of said escapement shaft mounted upon the platen carriage, and a universal bearing for the other end of said escapement shaft whereby said escapement shaft may tilt slightly when the platen carriage is moved forward or backward.

16. In a typewriting machine, the combination with a shiftable platen provided with a feed rack, of a 4feed pinion meshing with said feed rack and shiftable therewith, an escapement wheel, feed dogs cooperatingv with said escapement wheel to afford afeed of the carriage, and an escapement shaft upon one end of which said feed pinion is adapted to slide and upon the other end of which said escapement wheel is mounted.

17. In a typewriting machine, the combination with a shiftable platen carriage provided with a feed rack, an escapernent shaft, al feed pinion mounted to slide upon one end of said sha-ft, and meshing with said feed rack and movable therewith when the latter is shifted, an escapement wheel upon theother end of said escapement shaft, and feed dogs coperating with said escapement wheel to afford a feed of the carriage.

18. In typewriting machine, the combination with the platen carriage provided with a feed rack, an escapenent shaft provided with a feed pinion which meshes with said feed rack and anV escapement wheel, of feed dogs Coperatingwith said escapement wheel to afford a feed of the carriage, a swiveled ball bearing mounted upon the platen carriage for one end of said escapelSi) ment shaft, and a universal ball bearing mounted in a fixed portion of the framing of the machine for the other end of said escapement shaft.

19.- In a typewriting machine, the combination of aa platen carriage provided with a feed rack, an escapement shaft provided with a feed pinion which meshes with said feed rack, and an escapement wheel, feed dogs coperating with said escapement wheel to afl'ord a feed of the carriage, a trunnioned head mounted upon said platen carriage for supporting one end4 of said escapement shaft, a ball bearing within said head, and a universal ball bearing for the other end of said escapement shaft arranged adjacent said escapement wheel.

20.. In a typewriting machine,l the com-m bination with the type carriers each of which is provided with a plurality of typ'es, a platen carriage movable toward and from theltypes to change the position of the platen with respect tothe faces thereof and shiftable vertically for different case printing, and the escapement devices comprising a fixed and a movable dog, of means for effecting a connection between the escape- .ment devices and the feed rack of the platen carriage, comprising an escapement shaft, a feed pinion slidably mounted upon said shaft, and meshing with said feed rack, means forA preventinlga relative'rotary movement between said feed pinion kand said shaft, a trunnioned bearing carried by said platen carriage-for supporting said feed pinion whereby the latter is shiftable with the carriage and is maintained in constant mesh with said feed rack during the shifting movements thereof", an eseapement wheel mounted upon said shaft and adapted to be engaged by the escapement devices, and a fixed bearing for said escapement shaft in which the same may have oscillatory as well as rotary movements.

21. In a typewriting machine, the combination with the type carriers each of which is pro-vided with a plurality of types, a platen carriage which is movable toward and `from the faces of the types to change the position. of the platen with respect thereto and is shiftable for different case printing` said carriage being provided with a feed rack, and the escapement devices consistingr of fixed and movable feed dogs, of means for effecting a connection between t-he escapement devices and said feed rack, comprising an escapement shaft having an escapement wheel which coperates with said escapement devices, a universal bearing for said escapement shaft arranged adjacent saidescapement wheel, a feed pinion slidably mounted upon said escapement shaft, ball bearing key devices interposed between said feed pinion and said escapement shaft whereby the former may slide freely thereon butl is held against rotation with respect thereto, said feed pinion meshing with said feed rack and moving therewith when the platen carriage is shifted, a trunnioned head supported by the platen carriage, and a ball bearing for said pinion located within said head.

` 22. In a typewriting machine, the combination with a shiftable carriage provided with a feed-rack and the escapement devices, of means for connecting the escapement devices with said feed-raek, comprising an escapement shaft, a feed -pinion slidably mounted upon said escapcment shaft and keyed against rotation with respect thereto, a bearing for said feed-pinion supported upon the platen carriage, an escapement pinion supported by said platen carriage.

30. In a typewriting machine, the combination with the platen carriage provided witha feed-rack and the escapement devices, of means for connecting the escapement devices with the feed rack of the platen carriage, comprising an escapement shaft, au escapement wheel loosely mounted upon one end of said shaft, a clutch interposed between said escapement wheel and said shaft, one portion of said clutch being carried` by the escapement wheel, and the other portion thercofbeing slidably mounted upon said, escapement' shaft and keyed against rotation with respect thereto, spring means for holding the members of saidl clutch in engagement, said clutch compelling a. movement of said eseapement wheel with said escapement shaft when the latter is rotated in one direction but permitting a free rotative movement of said esca-pement shaft when the latter is rotated in' a reverse direction, a bearing for-said escapement wheel supported in a iixed portion "of the framing of the machine, a feed-pinion mounted upon the escapement shaft and meshing with said feed-rack, and a bearing for said feed-pinion, supported upon the carriage.

3l. In a typewriting macl'iine, the combination with the platen carriage provided with a feed-rack and thc escaperuent devices, comprising a fixed and a movable dog, of an escapement shaft, au escapemcnt wheel loosely mounted upon said escapement. shaft, a clutch interposed between said shaft and said escapement wheel, comprising a toothed member formed upon the eseapement wheel, and a longitudinally movable toothed member mounted upon said escapement shaft and keyed against rotation with respect thereto, said clutch being adapted to compel a rotation of said escapeni'cnt wheel when said shaft is rotated in one direction and to allow the escapement wheel to remain stat-ionary when said shaftis rotated in a reverse direction, a. spring mounted upon said shaft and holding said clutch nicinbers in operativeposition, a feed-pinion mounted upon said shaft and meshing with said feedrack, a. bearing for said eseapcinent. wheel, supported in a fixed portion o'f the machine, and a bearing for said feed-pinion, support-ed by the platen carriage.

In a typewriting machine, the combination with .the platen. carriage provided with a feed-rack and the escapemcnt d evices, comprising fixed and movable dogs, of

shaft and said esci pement wheel, comprising a pair of toothed members, one of which is formed upon the escapement wheel, and the other of which'is mounted to slide upon said shaft, aspring for holding said clutch members in operative' relation, the construetion being such that when said escapement shaft is rotat'ed in one direction, said escapement wheel will be compelled to rotate therewith, but when said escapement shaft is rotated in a reverse direction the escapement wheel may remain stationary, a' feedpinion mounted upon said'escapement shaft and meshing with the feed-rack, a bearing for said escapement wheel supported in a lixed'portion of the framing ofthe machine, and a bearing for said feed-pinion supported upon the platen carriage.

33. In'a typewriting' machine, the combination with a platen carriage provided with a feed-rack ,and the escapement devices, 'comprising fixed and movable dogs, of an -escapement shaft, an escapement wheel mounted loosely upon said shaft, a bearing for said escapeinent shaft supported in a iixedportion of the framing ofY the machine, a clutch interposed between said escapementshaftand said escapement wheel, said clutch comprising atoothed member formed upon the. escapement wheel, and a coperating toothed member mounted to slide upon said escapement shaft, a' key extended through said escapement shaft,the ends of which engage with said last named toothed member and hold the same against rotation with respect to said shaftpbut allows the saine to slide freely thereon in a longitudinal direction, means for holding said key in operative position, a spring engaging the toothed member upon said escapement shaft and urging it into engagement with the toothed member provided upon the escapem'ent wheel, a feed-pinion mounted upon said escapement shaft and meshing .with said feed-rack, and a bearing for said feedpinion. i

34. In a typewriting machine, the combination with a shiftable platen carriage, of a feed-rack carried thereby and the escapement. devices, means for connecting the eS- prising an escapelneut wheel wiih which said escapenieut devices coperate, an escapeinent shaft upon which said escapement wheel is loosely mounted, a bearing for said escapemcnt wheel, supported in a fixed porti on of the framing of the' machine, a clutch interposed between said escapement shaft and said escapement wheel, said clutch com- 4eapement devices with the feed-rack, comprising a'pair of relatively movable toothed' which is provided with the usual feed-rack Ato of the escapement devices, comprising yfixed and movable dogs, an escapement wheel with which said dogs coperate to afford a feed of the carriage, a. ball bearing support for said escapement wheel, portions of which are located near either end of the hub thereof, means interposed between said shaft and said escapement wheel, whereby the latter is compelled to rotate when said shaft is rotated in one direction, said means being automatically releasable, whereby the escapement wheel may remain stationary when said shaft is rotated in a reverse direction, a feed-pinion loosely mounted upon said escapement shaft and freely movable longitudinally thereof, said pinion meshing with said feed-rack and being provided with an internall7 grooved hub portion, said shaft being also provided with a grooved portion disposed adjacent the hub portion of said pinion, balls located in said grooves which operate as keys to prevent relativo rotation between said shaft and said pinion, a retainer engaging said balls and holding them in operative position within said grooves, a spring for holding said retainer in operative position, and a bearing for said pinion swiveled in arms which extend from the platen carriage, whereby said pinion is supportei'l from the platen carriage and is shil'tahle therewith.

In a typewriting machine, the combi,- nation with a shiftable platen carriage provided with a feed rack, and the carriage feeding devices, comprising a fixed and a movable dog, of means for effecting a connection between the feed-dogs and the feedrack, comprising an escapement wheel wit-h which said feed-logs coperatie, a bearing for said escapcu'iontwheel carried b v a fixed portion of the framing of the machine, an escapement shaft extended loosely through the hub portion of said escapement wheel, a toothed member formed'upon the escapement wheel, a toothed member slidably mounted upon theescapoment shaft, said escapement shaftI being proridcdvith an Opening extending therethrough, a key loosely extended through said opening and engaging said last. named toothed member` whereby the same is freelyslidable upon said shaft but is held against rotation relative thereto, a hood for holding said keyin operative position, a spring engaging the toothed member upon said shaft and normally holding the teeth thereof in engagement with those upon the escapementwheel, said toothed members operating as a clutch to compel a rotation of the escapement wheel with said escapement shaft whenthe latter is rotated in one direction but which is automatically releasable to allow a free rotation of the escapement shaft in a reverse direction While the cscapement wheel re. mains stationary, a feed-pinion mounted'to slide upon said escapement shaft andr meshing with said feed-rack, said feed-pinion being provided with a depending internally grooved hub ortion, said-shaft being externally groove at a point adjacent the grooves of said hub portion, balls located in said grooves and interposed between Said shaft and said hub portion, whereby said pinion iskeyed against rotation with respect to said shaft, a retainer for holding ,said balls lin operative position, a spring for positioning said retainer, a hood supported by' said hub portion which incloses said retainer, said hood being provided with shoulders adapted to engage said retainerdand prevent the same from beinfy carried out of Operative position when sai feed-pinion slides upon said escapement shaft, and a. bearing for said feed-pinion which is supported upon arms extending from-said platen carriage;

37. In a type-writing machine, the combination with a shiftable platen carriage provided with a feed-rack and the escapement devices, comprising a fixed and a movable dog, of an escapement wheel with which the escapement devices coperate to afford a feed of the carriage, an escapement shaft which extends loosely through the hub of said escapement' wheel, a Slutch interposed between said -shaft and said escapement wheel, whereby the latter is compelled to rotate with said shaft.- in one direction but which may remain stationary Whenthe cscapement shaft is rotatedin an opposite direction, a feed-pinion slidably mounted4 upon 'said shaft,- ball bearing key-devices interposed between said feed-pinion and said shaft,

'whereby they are maintained-against relative rotation, a bearing for said feed-pinion supported upon the platen carriage, whereby said feed-pinion is maintained in constant mesh with said feed-rack during the shifting movements of the carriage.

38. In a typewriting machine, the combi-A nation with the type carriers, each of which is provided with a plurality of types, of a platen carriage movable forward and backward to change the position of the platen with respect to the faces of the types and shiftable vertically for different case printlng, a feed-rack carried by the platen carriage, escapernent devices, comprising a fixed the latter may slide thereon hut is maintained against rotation relative. thereto, and a ball bearing,r for said feed-pinion trunnioned upon the platen carriage.

39. In a tvpewriting machine, the combination with the type. carriers, cach ot' which is provided with a pluralityv of types, of a platen carriage movable forward and backward to change the position of the platen with respect to the tacesof the types and shiftable transversely ot its length for different case printing, a feed-rack mounted upon the` platen carriage, eseapelnent devices, comprising' a fixed and a. movable dog, an eseapement wheel with which said escapel meut devices cooperate, a universal hearing for said eseapcment. wheel, comprising oppositely disposed spherically grooved bearings, said escapement wheel being provided with ball-runways, halls located in sa id runways, engaging said sphericallyi Agroovcd l earings an eseapement shaft extended loosely through said escapement wheel, a spring controlled clutch interposed between said escapcmentshaft and said escapement wheel, whereby said escapeu'ient wheel is compelled to relate with said escapement shaft, when the latter is rotated in one direction but is automatically released therefrom and allowed to remain .stationary when said escapementshatt. is rotae'ed in an opposite direction, a feed-pinion slidably nu'uinted upon said cseapen'xentshaft, whit-h meshes with said fetal-rack, hall bearing key-devices interposed between said feed-pinion and Said shaft for }nc.'ent.in f` relative rotation between said parts` a head trunnioncd upon the carriage. and a. ball bearing interposed between said head and said feed-pinion.

l0.. In a tvpewriting machine, the combination with type carriers, each of which is provided with a plurality of types, a platen carriage normally occupying,r an intermediate position with respect to said types and shiftable in opposite directions from said intermediate position for different ease printing, escapement devices, comprising' fixed and movable dogs, an mieal'iementshaft., an escapement wheel mounted upon said'\ shaft with which said dogs cooperate to a tlord a feed of the carriage, and a feedpiniontmiounted to slide upon said shaft and the platen carriage and sliding upon said eseapement shaft when the platen carriage shifted.

41. In a typeii'riting machine, the combination with the type carriers, of a platen carriage having a rail along which it travels, a feed rack mounted on said carriage, and an eseapemeut shaft having a pinion meshing with said rack and adapted to move therewith, said shaft having a hearing at one end in said carriage rail.

42. ln a typewriting machine, the combination with a shiftable platen carriage having,r a t'eed mechanism connected therewith, an esca pement mechanism, and intermediate means for transmitting motion from one to the other, so constructed as to permit a relative shifting movement of said feed meehanism and escapement mechanism as the carriage is shifted.

43. In a typewriting machine, the combination with a shiftable platen carriage havinga feed mechanism connected therewith, an escapement mechanismfand intermediate means for transmitting motion for one to the other,.said means being telescopically constructed to permit a relative shifting movement of said parts.

44. In a typewritinp machine, the combi nation with a shiftable platen carriage having a feed mechanism connected therewith, an escapementmechanism, and intermediate means for transmitting motion from one to the other, said means having a bearing at one' end to permit an oscillatory movement thereof.

45. In a typewriting machine, the combination with a shiftable platen car 'age having a feed mechanism connected therewith, an eseapement mechanisn'i, and intermediate means t'or trausmittin{r motion from one to the other. said means having a bearing at one end to permit an oscillatory movement thereof and so constructed as to permit a relative shifting,r movement of the platen carriagc and escapement mechanism.

46. In a typcwriting machine, in combination, type carriers, a platen carriage movahle toward and from the type carriers, a feed rack mounted upon the platen carriage and movable therewith, an escapement shaft having a pinion meshing with said feed rack and adapted to move therewith, and means for throwing said feed rack and pinion out of engagement. i

47. .In a typewriting' machine, in combi- 48. In a typewriting machine, in combimoving said feed rack and pinion out of ennation, type carriers, a shift-able platen cargagement. 10 ringe, a feed Tack mounted upon the platen In testimony whereof I afiX my signature,

carriage, an* escapement shaft having a in the presence of two witnesses. 5 pinion nieshingwith said feed rack and Y NILS H. .,ANDERSON. adapted to shift with the platen; carriage Witnesses: l

whereby said rack and. pinion are always in C. H. WILsoN,

mesh, and means carried by the carriage for H. M. SEAMANS'. 

